供应商评价及供应商关系对供应链优化影响的研究

发布时间：2018-03-04 08:14

本文选题：供应商评价　切入点：供应商关系　出处：《北京化工大学》2014年硕士论文　论文类型：学位论文

【摘要】：供应链优化是企业增加竞争优势的战略性必然选择,供应商作为供应链源头在供应链中起到了至关重要的作用。供应商的评价直接影响着供应商的被选择性,进而关系到采购产品的质量、交货期等,制约着供应链的整体表现。供应商之间的关系使供应链优化问题变得更加复杂,节点企业间的关联方式影响着供应链的结构。石化工程项目中,物资采购费用一般占项目总投资的50%以上,项目中采购物资的种类众多、关系繁杂,并且供应商之间存在影响关系。因此,需要研究供应商评价和供应商关系对供应链优化的影响进行研究。本文的主要研究内容包括： 1)选取了一个发达国家的乙烯裂解项目为典型石化工程项目实例,建立了以总评估成本最小为目标的混合整数非线性模型作为供应链优化的基础。 2)供应商评价是对供应商历史供应表现的评估,具有一定的主观性和实时更新性,本文通过所建的混合整数非线性数学模型分析了供应商评价对石化工程项目供应链优化的影响以及供应商评价中主观因素对供应链优化的影响。 3)石化工程项目中物资的内在关系和不同采购方式使供应商之间存在一定关联性,本文通过所建的数学模型研究了供应商的关系对供应链优化的影响,发现石化工程项目供应链可以通过结构的调整达到供应链的整体最优。本文以实际的石化工程项目为背景建立了工程项目供应链优化的数学规划模型,并且研究了供应商评价和供应商关系对供应链优化的影响,为工程项目总承包商以后的招标工作提供了理论指导。
[Abstract]:Supply chain optimization is a strategic and inevitable choice for enterprises to increase their competitive advantage. As the source of supply chain, supplier plays an important role in the supply chain. The evaluation of suppliers directly affects the selectivity of suppliers. The relationship between suppliers makes the optimization problem of supply chain more complex, which is related to the quality of purchasing products, delivery time and so on, and restricts the overall performance of supply chain. In petrochemical engineering projects, the purchase cost of materials generally accounts for more than 50% of the total investment of the project, and there are many kinds of materials purchased in the project, and the relationship is complicated. Therefore, it is necessary to study the impact of supplier evaluation and supplier relationship on supply chain optimization. The main contents of this paper are as follows:. 1) the ethylene cracking project in a developed country is selected as a typical petrochemical engineering project, and a mixed integer nonlinear model with minimum total evaluation cost is established as the basis of supply chain optimization. 2) supplier evaluation is an evaluation of supplier's historical supply performance, which is subjective and updated in real time. In this paper, the influence of supplier evaluation on supply chain optimization of petrochemical engineering projects and the influence of subjective factors in supplier evaluation on supply chain optimization are analyzed by using the mixed integer nonlinear mathematical model. 3) the internal relations of materials and materials in petrochemical engineering project and different purchasing methods make the suppliers have certain relevance. This paper studies the influence of supplier relationship on the supply chain optimization through the mathematical model established in this paper. It is found that the supply chain of petrochemical engineering project can be optimized by adjusting the structure of the supply chain. In this paper, the mathematical programming model of supply chain optimization of engineering projects is established under the background of actual petrochemical engineering projects, and the influence of supplier evaluation and supplier relationship on supply chain optimization is studied. It provides theoretical guidance for the bidding work of the general contractor of the project.
【学位授予单位】：北京化工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：F274

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